[R-sig-DB] R GUI : any suggestion??

[Prof Brian Ripley]

Please stop misusing this list, which is about DBMS interfaces in R.
This is the third irrelevant posting from you this month, in each case 
with a misleading and unspecific title.

R-help is the list for basic R questions, and this has nothing to do with 
any 'R GUI' (nor does this list).

There is a posting guide, and it asks you to do your homework.  Try the 
help on the functions aggregate(), by ()and tapply()

On Wed, 14 Feb 2007, d. sarthi maheshwari wrote:

> Hi
>
> Please suggest me how to implement "Group by" function of SQL in R GUI?
>
> e.g.
> input data.frame
> x                  y
> ============
> a                10
> b                20
> a                10
> a                10
> b                15
> b                15
> b                20
>
> In o/p i need
>
> x            y
> =========
> a           30
> b           70
>
>

-- 
Brian D. Ripley,                  ripley using stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
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